Led by Charles Evans Hughes (?) who was secretary of stateFour Power Treaty (US, UK, France, Japan): security in the Pacific -> undoing Anglo-Japanese alliance of 1902 Designed by the US to make sure that Japan does not get too powerfulFive Power Treaty (4+ Italy): strict limits on size and number of navy ships (in entire globe) Basically an arms reduction agreement Idea is that big militaries in an arms competition leads to war (like Britain and Germany going into WWI) 5:5:3:1.67 ratio US and UK Navy can be equal (5:5); Japan must be 3/5 the size of the US and UK Navy; Etc.Nine Power Treaty (5+ China, Belgium, Netherlands, Portugal): affirming Chinese sovereignty -> enshrining the "open door" Official affirmation of the open door that respects the sovereignty of China

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